87533078 has 16 divisors (see below), whose sum is σ = 141734880. Its totient is φ = 40419456.

The previous prime is 87533063. The next prime is 87533081. The reversal of 87533078 is 87033578.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31475 + ... + 34142.

It is an arithmetic number, because the mean of its divisors is an integer number (8858430).

Almost surely, 2^87533078 is an apocalyptic number.

87533078 is a deficient number, since it is larger than the sum of its proper divisors (54201802).

87533078 is a wasteful number, since it uses less digits than its factorization.

87533078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65671.

The product of its (nonzero) digits is 141120, while the sum is 41.

The square root of 87533078 is about 9355.9113933384. The cubic root of 87533078 is about 444.0079368492.

Subtracting from 87533078 its reverse (87033578), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 87533078 in words is "eighty-seven million, five hundred thirty-three thousand, seventy-eight".